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Research in migration route of hatchery released Chinese shrimp (Fenneropenaeus chinensis) in the Bohai Bay using method of SSR marker

文献类型： 外文期刊

作者： Wang, Weiji 1 ; Lyu, Ding 1 ; Wang, Mosang 1 ; Liu, Kefeng 3 ; Kong, Jie 1 ; Shan, Xiujuan 1 ; Jin, Xianshi 1 ;

作者机构： 1.Chinese Acad Fishery Sci, Yellow Sea Fisheries Res Inst, Minist Agr, Key Lab Sustainable Dev Marine Fisheries, Qingdao 266071, Peoples R China

2.Pilot Natl Lab Marine Sci & Technol Qingdao, Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266237, Peoples R China

3.Bohai Fisheries Res Inst Tianjin, Tianjin 300457, Peoples R China

关键词： Fenneropenaeus chinensis; migration route; hatchery release; stock enhancement; SSR marker

期刊名称：ACTA OCEANOLOGICA SINICA （ 影响因子：1.431； 五年影响因子：1.445 ）

ISSN： 0253-505X

年卷期： 2020 年 39 卷 12 期

页码：

收录情况： SCI

摘要： This study provides new insights for the hatchery released Chinese shrimp (Fenneropenaeus chinensis), including proportion, dynamic migration route, after they were released into nature for stock enhancement using a new strategy quite different than ever. Chinese shrimp were sampled at 22 survey stations during two investigation voyages acrossing 74 survey stations in the Bohai Sea from July 16 to August 9 in 2015. Among 289 sampled individuals during the second voyage, totally 155 shrimps were identified as hatchery shrimp released into the Laizhou Bay at mid-May in 2015 based on finger-print of eight SSR (simple sequence repeats) markers, and the proportion of hatchery released shrimp in recapture samples were from 41.30%-85.71% in each station with an average value 53.63%, which verified a previous view point that up to 90% of autumn season Chinese shrimp landing in the Bohai Sea were composed of hatchery released. Meanwhile, the dynamic migration route of hatchery released shrimp revealed that part of released shrimp migrated heading northwest along the west coast of the Bohai Sea up to the Bohai Bay but just remained at the Laizhou Bay until over-wintering migration at mid-October when they initiate over-wintering migration. Present unnatural spring season shrimp fishing model cut the throat of spawner shrimp chance to swim back to their respective spawning plants at each spring, it still no chance to clarify whether the hatchery released shrimp could replenish to the reproduce population and complete a whole life cycle as same as their natural relatives.

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